About 6h ago, at 2023-03-12 23:28:15 mr1-eqiad became unreachable on both its OOB and prod interfaces.

The same happened in ulsfo recently T330984: mr1-ulsfo dead?.

Could you try power-cycling it?

Until this is fixed, eqiad mgmt network will be unreachable and some cookbooks (eg. re-image) will fail.